:root {
  color-scheme: light;
  --paper: #f3eee6;
  --card: #fffdf9;
  --ink: #1d1914;
  --muted: #6f675e;
  --line: #e4dcd0;
  --focus: #b08958;
  --danger: #8a3d2f;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Noto Sans SC",
    "Source Han Sans SC", "WenQuanYi Micro Hei", "Droid Sans Fallback", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 18% 12%, rgba(196, 165, 116, 0.22), transparent 28%),
    radial-gradient(circle at 86% 88%, rgba(140, 90, 62, 0.12), transparent 32%),
    var(--paper);
}

.stage {
  flex: 1;
  display: grid;
  place-items: center;
  padding: 32px 20px;
}

.footer {
  padding: 0 20px 24px;
  text-align: center;
}

.footer a {
  color: var(--muted);
  font-size: 13px;
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

.card {
  width: min(100%, 420px);
  padding: 44px 40px 36px;
  background: var(--card);
  border: 1px solid rgba(29, 25, 20, 0.06);
  border-radius: 22px;
  box-shadow: 0 24px 60px rgba(58, 42, 24, 0.08);
}

.mark {
  width: 42px;
  height: 42px;
  color: var(--ink);
}

h1 {
  margin: 18px 0 8px;
  font-family: "Songti SC", "STSong", "Noto Serif CJK SC", "Noto Serif SC",
    "Source Han Serif SC", "Source Han Serif CN", serif;
  font-size: 32px;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.25;
}

.lede {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 15px;
}

.field {
  display: block;
  margin-bottom: 16px;
}

.field span {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  letter-spacing: 0.08em;
}

.field input {
  width: 100%;
  height: 48px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 16px;
}

.field input::placeholder {
  color: #b3aaa0;
}

.field input:focus {
  outline: 2px solid var(--focus);
  outline-offset: 1px;
  border-color: transparent;
}

.password {
  position: relative;
  display: block;
}

.password input {
  padding-right: 72px;
}

.toggle {
  position: absolute;
  top: 50%;
  right: 8px;
  transform: translateY(-50%);
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}

.toggle:focus-visible {
  outline: 2px solid var(--focus);
  border-radius: 6px;
}

.message {
  margin: 4px 0 16px;
  color: var(--danger);
  font-size: 14px;
  line-height: 1.5;
}

.submit {
  width: 100%;
  height: 48px;
  margin-top: 8px;
  border: 0;
  border-radius: 12px;
  background: var(--ink);
  color: #f7f3ec;
  font: inherit;
  font-size: 16px;
  letter-spacing: 0.12em;
  cursor: pointer;
}

.submit:hover {
  background: #322b24;
}

.submit:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

@media (max-width: 480px) {
  .card {
    padding: 36px 24px 28px;
  }

  h1 {
    font-size: 28px;
  }
}